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Subject: Re: How does a modem work?

Date: 10/05/00 at 6:14 AM
Posted by: David Gibbons
E-mail: davidjohn.gibbons@physics.org
Message Posted:

In Reply to: Re: How does a modem work? posted by Mark on 10/04/00 at 5:09 PM:

I had very little feedback on this subject except refs to QAM (quadrature amplitude modulation). This seems to be the nub of things because it enables a bit-rate of up to 28.8 kbps with a baud rate bandwidth limited to ~3.4 k.Hz Downloading at 56kbps is not done by your modem.

Apparently a modem can also do data compression.

I found a good tutorial on QAM by searching n "Ask Jeeves"


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